The Check Engine Light may illuminate accompanied by a code P0133 (bank1 O2 sensor) stored in the powertrain control module (PCM). This is commonly caused by a failed air/fuel sensor. Our technicians tell us a revised a/f senor and (PCM) software upgrade may be necessary to correct this concern.
Car problem reports
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Most reported 2005 Suzuki Forenza problems
The head lights may stop working due to a failed connection at the multifunction head light switch. Our technicians tell us there is a harness connector repair kit available which should be installed in conjunction with dielectric grease to seal the connector. 2004-2006 models have been recalled for low beam and daytime running light malfunctions. For more information on this recall, please click here»
A lack of power may develop, accompanied by an illuminated Check Engine Light with fault code P2106 stored in the powertrain control module (PCM). This fault can be caused by a throttle actuator which has only limited movement. The correction for this condition includes replacing the throttle actuator and updating the PCM software.
A hard starting condition may be due to low fuel pressure. Our technicians tell us the powertrain control module (PCM) should energize the fuel pump for 2 seconds when the ignition is turned on in order to properly pressurize the fuel system. Correcting this condition may require updating the PCM software.